"levers" meaning in Yola

{
  "etymology_templates": [
    {
      "args": {
        "1": "yol",
        "2": "enm",
        "3": "laver",
        "4": "lever"
      },
      "expansion": "Middle English lever",
      "name": "inh"
    },
    {
      "args": {
        "1": "yol",
        "2": "ang",
        "3": "læfer"
      },
      "expansion": "Old English læfer",
      "name": "inh"
    }
  ],
  "etymology_text": "From Middle English lever, from Old English læfer.",
  "head_templates": [
    {
      "args": {
        "1": "yol",
        "2": "noun form"
      },
      "expansion": "levers",
      "name": "head"
    }
  ],
  "lang": "Yola",
  "lang_code": "yol",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 6 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Yola entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Flags (plants) that grow in boggy ground."
      ],
      "id": "en-levers-yol-noun-obUq1Q0D"
    }
  ],
  "sounds": [
    {
      "ipa": "/lɛˈviːz/"
    }
  ],
  "word": "levers"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "yol",
        "2": "enm",
        "3": "laver",
        "4": "lever"
      },
      "expansion": "Middle English lever",
      "name": "inh"
    },
    {
      "args": {
        "1": "yol",
        "2": "ang",
        "3": "læfer"
      },
      "expansion": "Old English læfer",
      "name": "inh"
    }
  ],
  "etymology_text": "From Middle English lever, from Old English læfer.",
  "head_templates": [
    {
      "args": {
        "1": "yol",
        "2": "noun form"
      },
      "expansion": "levers",
      "name": "head"
    }
  ],
  "lang": "Yola",
  "lang_code": "yol",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 6 entries",
        "Pages with entries",
        "Yola entries with incorrect language header",
        "Yola non-lemma forms",
        "Yola noun forms",
        "Yola terms derived from Middle English",
        "Yola terms derived from Old English",
        "Yola terms inherited from Middle English",
        "Yola terms inherited from Old English"
      ],
      "glosses": [
        "Flags (plants) that grow in boggy ground."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/lɛˈviːz/"
    }
  ],
  "word": "levers"
}